360 Degree Adjustment- Adjust the 360 degree rotatable mirror to any angle you like and freely adjust it up and down or left and right to get the best view angle in different road conditions - a perfect all-round view of all around you so you can ride with peace of mind Wide Application - Bike mirror for 22-25mm handlebar (8.66-9, 4") in diameter. It can be mounted on the handlebar of most bicycles, such as mountain bikes, electric vehicles, electric bicycles, motorcycles, electric scooters, etc.DURABLE AND LIGHTWEIGHT- The bicycle rearview mirror uses high hardness aluminum alloy and hard plastic as the bracket, which is durable, strong but lightweight, strong, high quality and practical.This is a bicycle rearview mirror. weatherproof bike. VERY EASY TO INSTALL - They have nuts to hold them in place so they don't move. p> SAFE DRIVING- Our Fa hrradspiegel handlebar mirror provides clear and safe riding through the bike mirror lens, providing HD wide field of view, easy and clear to see vehicles and obstacles, and see the car behind.